RAMAT HASHARON, Israel — Egypt’s president announced Sunday his country has proposed a two-day cease-fire between Israel and Hamas during which four hostages held in Gaza would be freed. President Abdel-Fattah el-Sissi, speaking in Cairo, said the proposal also includes the release of some Palestinian prisoners and the delivery of humanitarian aid to the besieged Gaza Strip. [time-brightcove not-tgx=”true”] Egypt has been a key mediator along with Qatar and the United States.